package com.ydl.learning.flink.demo.janino;

/**
 * @author ydl
 * @since 2022/1/18
 */
public class SelfExpression {
  public static String add(String a,String b){
    return a.concat(b);
  }

  public static void main(String[] args) {
    System.out.println(add("a","b"));
  }
}
